Results 51 to 60 of about 28,374 (231)
Copula estimation for nonsynchronous financial data
, 2020 Copula is a powerful tool to model multivariate data. We propose the modelling of intraday financial returns of multiple assets through copula. The problem originates due to the asynchronous nature of intraday financial data.
Chakrabarti, Arnab, Sen, Rituparna
core
Cooperative learning in anatomy: Comparing virtual avatars and human specimens
Anatomical Sciences Education, EarlyView.Abstract Contemporary research demonstrated that undergraduate medical students rated an augmented reality learning tool entitled “human muscular arm avatar” as useful for their self‐directed individual learning. Beyond this subjective assessment, it was largely unknown whether avatar‐based study would also improve knowledge test scores at an objective
Christa Maurer +6 more
wiley +1 more source
Dependence Modeling, 2017 Several successful approaches to structure determination of hierarchical Archimedean copulas (HACs) proposed in the literature rely on agglomerative clustering and Kendall’s correlation coefficient.
Górecki J., Hofert M., Holeňa M.
doaj +1 more source
Pemodelan Copula: Studi Banding Kuantifikasi Autokorelasi
Cauchy: Jurnal Matematika Murni dan Aplikasi, 2009 Dalam tulisan ini akan dijelaskan beberapa metode kuantifikasi dependensi antara dua variabel acak (bivariat) dan perbandingan antara metode kuantifikasi dependensi tersebut.
Fachrur Rozi
doaj +1 more source
Scope 3 Carbon Emissions Assessment for Manufacturing SMEs
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT This paper addresses the challenges facing managers of Small‐ and Medium‐Size Enterprises (SMEs) when conducting environmental sustainability assessment at the value chain level, particularly Scope 3 Greenhouse Gases (GHG) emissions. The paper investigates issues related to data availability and data quality for Scope 3 assessment and ...
Kourosh Halat +3 more
wiley +1 more source
Accurate ranking of influential spreaders in networks based on dynamically asymmetric link-impact
, 2017 We propose an efficient and accurate measure for ranking spreaders and identifying the influential ones in spreading processes in networks. While the edges determine the connections among the nodes, their specific role in spreading should be considered ...
Do, Younghae +3 more
core +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Despite rapid growth in gender lens investing (GLI), substantial variation remains in how gender lens equity funds (GLEFs) integrate gender equality criteria into investment strategies. We map a universe of 43 GLEFs and develop a framework capturing gender equality screening breadth and accountability depth (fund‐level disclosure and ...
Freyja Vilborg Thorarinsdottir +3 more
wiley +1 more source
Frontiers in Oncology, 2020 Background: Using progression-free survival (PFS)2, time from randomization to 2nd disease progression or death, is proposed as a surrogate for overall survival (OS) in oncology clinical trials.
Simon Chowdhury +6 more
doaj +1 more source
Doubly Robust Sure Screening for Elliptical Copula Regression Model
, 2018 Regression analysis has always been a hot research topic in statistics. We propose a very flexible semi-parametric regression model called Elliptical Copula Regression (ECR) model, which covers a large class of linear and nonlinear regression models such
He, Yong +3 more
core +1 more source
Developmental Dynamics, EarlyView.Abstract Background The notochord is a midline structure essential for vertebrate embryogenesis, contributing to the development of the nervous system, digestive tract, and vertebral column. In particular, notochord signaling is indispensable for proper patterning and coordinated development of alternating vertebrae and intervertebral discs (IVDs ...
Julie Warin +5 more
wiley +1 more source